.arm {
    width: 27.409%;
    height: 23.548%;
    background: var(--body-color);
    position: absolute;
    z-index: -1;
}

.arm-left {
    top: 10.645%;
    left: -2.409%;
    border-radius: 62px 13px 0px 51px / 49px 43px 0px 38px;
    box-shadow: inset 0px -35px 60px 0 var(--body-shadow-color), 40px 20px 64px 0 rgba(0, 0, 0, 0.2);;
    transform: rotate(15deg);
    transform-origin: right center; 
    animation: armInciteLeft 0.1s infinite alternate;
}
.arm-right {
    top: 22.258%;
    right: -2.108%;
    border-radius: 0 53px 38px 0 / 0 43px  42px 0;
    box-shadow: inset -7px -5px 25px 0 #fa9faa;
    transform-origin: left center; 
    transform: rotate(0deg);
    animation: armInciteRight 0.1s infinite alternate;

}


@keyframes armInciteLeft {
    0% {
        transform: rotate(15deg);
    }

    50% {
        transform: rotate(10deg);
    }

    100% {
        transform: rotate(5deg);
    }
}

@keyframes armInciteRight {
    0% {
        transform: rotate(0deg);
    }

    50% {
        transform: rotate(10deg);
    }

    100% {
        transform: rotate(15deg);
    }
}